NAME

Forks::Super::Sync::IPCSemaphore - Forks::Super sync object using SysV semaphores

SYNOPSIS

    $lock = Forks::Super::Sync->new(implementation => 'IPCSemaphore', ...);

    $pid=fork();
    $lock->releaseAfterFork();

    if ($pid == 0) { # child code
       $lock->acquire(...);
       $lock->release(...);
    } else {
       $lock->acquire(...);
       $lock->release(...);
    }

DESCRIPTION

IPC synchronization object implemented with SysV semaphores.

Advantages: fast, doesn't create files or use filehandles

Disadvantages: Unix only. Gets complicated when a child process dies without releasing its locks.

SEE ALSO

Forks::Super::Sync